Is the first industrial application of 2XXX series alloy, the current application scope is narrower, mainly for rivet, general mechanical parts, structure and transportation tool structural parts, propeller and accessories

2219 The space rocket welding oxidant tank, the supersonic aircraft cover and the structural parts, the working temperature is -270 ~ 300 degree Celsius. Good weldability, high fracture toughness and high resistance to stress corrosion cracking in T8